Jesus MS de, Savioli AMP das D. Concepções manifestadas por licenciandos em Matemática ao lidarem com tarefas envolvendo o conceito de Anel<br>Conceptions expressed by mathematics student’s in dealing with tasks involving the concept of ring. EMP [Internet]. 2019Apr.29 [cited 2024Sep.26];21(1). Available from: https://revistas.pucsp.br/index.php/emp/article/view/31695